Radio broadcast .. (1922-30)

WILLIS KINGSLEY WING Editor KEITH HENNEY . Director of Ihe Laboratory HOWARD E. RHODES . . Technical Editor EDGAR H. FELIX . . . Contributing Editor RADIO BROADCAST PUBLISHED FOR THE RADIO INDUSTRY VOL. XVI. NO. 2 Contents for December, 1929 General Motors—And Radio 71 Changing Sales Conditions ------ Harry P. Bridtje 72 Radio's Advertising Budget—$25,000,000 - - T. A. Phillips 74 What Is the Size of Your Slice? - - Howard W. Dickinson 76 The Jobber's New Place - - - A. II. Deuie 78 Tested Sales Ideas - - - - Field Crew Directed From Truc-k Inexpensive Publicity that Counts When Dealers Cooperate Making Money Out of Trade-ins Merchandising Shorts 80 Try This Stunt in Your City SeU a Set to Your Doctor Making Outside Salesmen Pay Increasing Service Efficiency How About Time Payments? - - Professionally Speaking - - - - Howard W. Dickinson 82 - - - - Keith Henney 81 Regarding Style Changes A Radio for the Fanner Foreign Views on Advertising Bayard II. Penrose A Page of Pictures House-to-House Selling Is Not a Sideline Radio Pictures of the Month - - - - Advertise What You Have to Sell --------- The March of Radio - - - - An Editorial Interpretation 85 87 88 90 Readjustment in the Industry What is Right with broadcasting Roasting Will Do It A Lesson for the Radio Industry News of the Radio Industry ----------- 92 The Tube Business ----- News of the Tube Industry 96 Strays from the Laboratory ----- Technical Shorts 101 Regarding Synchronized Stations Measuring Screen-Grid Capacity In the Radio Marketplace - - Offerings of Alanufacturers 102 The Serviceman's Corner ------------104 trostatic Loud Speakers F. J. Somers and G. E. Matlos 106 Setting Radio Standards ----- - Kenneth W. Jarvis 108 The Philco "°^ ' Screen-Grid Plus Walter E. Holland and W. A. Mac Donald The EM^ ^dynami 111 ynamic Loud Speaker - - - - E. A. Uehliny 113 Ihe Pentode Tube Friedrich Oskar Rolhy 116 - - - 118 "Radio Broi&cast's" Set Data Sheets The Crosley Models 609,610 The Day-Fan Model 509J Radio Broadcast Laboratory Information Sheets - Howard E. Rhodes No. 307. Frequency Band Re- No. 308. Frequency Hand Re- quirement** quirernrnls No. 309. Volume vs. Fidelity The contents of this magazine are indexed in The Renders' Guide to Periodical Literature, which is on tile at all public libraries 120 . . . among other things GREAT RADIO hue and cry has been raised recently. Will the purging of Wall Street affect the radio market? There are prophets who stoutly maintain op- posite positions. Sales of radios, automobiles, fine books, and whatnot will have a greatly restricted de- mand, one group says. The other says that radio sales are not influenced to any great degree by conditions on Wall Street. With this latter opinion, we agree. What of the fact that radio sales since the latter part of September and through most of October have shown a tendency to slow up? What of the rather general de- crease in factory production of sets? What do the many announcements of sweeping price cuts mean? ONE THING is certain: public interest in radio pro- grams and radio merchandise is keen. Replace- ment tube sales continuing at a high level indicate that. But radio manufacturers have not yet learned, how to gauge production to meet demands; they have not yet faced certain well-known and particularly seri- ous distribution problems. Until the industry does this, each year is going to show a hurried readjustment of industry activity. rpms MONTH the leading article in our department, A "Professionally Speaking" brings up a question that is worth some thought: "To what extent are changes in radio receivers due to engineering advances and to what extent is pure 'styling' responsible?" Can you name any change in radio design for which style is primarily responsible? READERS have been insisting for months that the "Home-Study Sheets" return to the pages of RADIO BROADCAST. Effective with our January issue, this feature will reappear. January will also see an in- crease in the number of Set Data Sheets with the addition feature of proper voltage and current read- ings to help those who use these circuits in regular service work with a test set. IN JANUARY, we plan to present an interesting article on one of the remote-control systems which will be in the public eye in a few more months. Among the other features will be a description of the new RCA farm radio set, the Radiola No. 21, an interesting re- view of merchandising and engineering radio progress for the year 1929, and a description of an unusual radio merchant who makes his service department pay and pay well. — WILLIS KINGSLEY WING. TERMS: $4.00 a year; single copies 35 cents; All riyhlx reserved. 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DOUBLEDAY, Chairman of the Board; NELSON DOUBLEDAY. President; GEORGE H. DORAN. Vice-President; RUSSELL DOUBLEDAY, Secretary; JOHN J. HESSIAN, Treasurer; LILLIAN A. COMSTOCK, Asut't Seer lory; L. J. McNAUGHTOIf, Assl'l Treasurer 68 • DECEMBER 1929